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Molecular Biology Reports Dec 2020The mitochondrial encephalomyopathies represent a clinically heterogeneous group of neurodegenerative disorders. The clinical phenotype of patients could be explained by... (Review)
Review
The mitochondrial encephalomyopathies represent a clinically heterogeneous group of neurodegenerative disorders. The clinical phenotype of patients could be explained by mutations of mitochondria-related genes, notably SUCLG1 and SUCLA2. Here, we presented a 5-year-old boy with clinical features of mitochondrial encephalomyopathy from Iran. Also, a systematic review was performed to explore the involvement of SUCLG1 mutations in published mitochondrial encephalomyopathies cases. Genotyping was performed by implementing whole-exome sequencing. Moreover, quantification of the mtDNA content was performed by real-time qPCR. We identified a novel, homozygote missense variant chr2: 84676796 A > T (hg19) in the SUCLG1 gene. This mutation substitutes Cys with Ser at the 60-position of the SUCLG1 protein. Furthermore, the in-silico analysis revealed that the mutated position in the genome is well conserved in mammalians, that implies mutation in this residue would possibly result in phenotypic consequences. Here, we identified a novel, homozygote missense variant chr2: 84676796 A > T in the SUCLG1 gene. Using a range of experimental and in silico analysis, we found that the mutation might explain the observed phenotype in the family.
Topics: Child, Preschool; DNA, Mitochondrial; Homozygote; Humans; Iran; Male; Mitochondria; Mitochondrial Encephalomyopathies; Mutation, Missense; Succinate-CoA Ligases
PubMed: 33230783
DOI: 10.1007/s11033-020-05999-y -
Scientific Reports Oct 2022To summarize the differences in urodynamic outcomes between oral antimuscarinic drugs and OnabotulinumtoxinA, and finding a therapy that maintains good urodynamics in... (Meta-Analysis)
Meta-Analysis
Efficacy, according to urodynamics, of OnabotulinumtoxinA compared with antimuscarinic drugs, for neurogenic detrusor overactivity: a systematic review and network meta-analysis.
To summarize the differences in urodynamic outcomes between oral antimuscarinic drugs and OnabotulinumtoxinA, and finding a therapy that maintains good urodynamics in neurogenic detrusor overactivity (NDO). We conducted a literature search of EMBASE and PubMed, with the language limited to English. In the analysis, all of the published randomized trials of OnabotulinumtoxinA or antimuscarinic drugs used to treat NDO were found and the results were finally obtained through Bayesian model analysis. A total of 12 RCTs and 2208 patients were included. OnabotulinumtoxinA 300U was superior to other drugs in terms of MCC, volume at IDC, and Pdet endpoints. OnabotulinumtoxinA 200U was more effective on the urodynamic endpoint of BC than other drugs or doses of OnabotulinumtoxinA. According to the MCC urodynamic results, oxybutynin, solifenacin 10 mg, and tolterodine 4 mg also had positive effects. OnabotulinumtoxinA 300U, 200U and 100U were better in improving the urodynamic results of NDO, and the current evidence also shows that selective injection of onabotulinumtoxinA can effectively improve the urodynamic results.
Topics: Humans; Botulinum Toxins, Type A; Urodynamics; Muscarinic Antagonists; Urinary Bladder, Neurogenic; Solifenacin Succinate; Network Meta-Analysis; Tolterodine Tartrate; Bayes Theorem; Treatment Outcome; Urinary Bladder, Overactive
PubMed: 36289427
DOI: 10.1038/s41598-022-22765-1 -
Urogynecology (Philadelphia, Pa.) Feb 2023Constipation is common after pelvic surgery, and studies suggest that surgeons underestimate the negative impact of constipation on patients. Patients undergoing pelvic...
IMPORTANCE
Constipation is common after pelvic surgery, and studies suggest that surgeons underestimate the negative impact of constipation on patients. Patients undergoing pelvic reconstructive surgery are a unique population requiring special consideration in the prevention and management of constipation.
OBJECTIVE
This study aimed to systematically review the literature to identify evidence for prevention of postoperative constipation with medications or fiber in patients undergoing reconstructive pelvic surgery.
STUDY DESIGN
A structured literature search was performed of five databases (MEDLINE, Embase, Scopus, Web of Science, the Cochrane Library) from inception to June 2022 for studies of postoperative laxative or fiber use in adult patients undergoing benign pelvic reconstructive surgery. Studies of preoperative bowel preparation and nonsurgical patients were excluded. Data on postoperative constipation were extracted for a qualitative analysis of the literature. Grading of Recommendations Assessment, Development, and Evaluation methodology was applied to assess the quality of evidence.
RESULTS
We identified 86 references after deduplication. Only 4 studies with a total of 344 patients were eligible for inclusion in the review. The included studies were all randomized controlled trials assessing time to first bowel movement with the earliest published in 2010. Laxative use decreased constipation more than placebo. Multiple-agent laxative use appeared to decrease bothersome constipation more than single-agent docusate. Preoperative fiber did not decrease constipation. By Grading of Recommendations Assessment, Development, and Evaluation criteria, all four studies provide moderate-quality evidence.
CONCLUSIONS
Few studies have investigated laxative regimens in patients after urogynecologic surgery. The available literature is moderate quality and suggests benefit of multiple-agent treatment over docusate only or no treatment.
Topics: Adult; Humans; Laxatives; Dioctyl Sulfosuccinic Acid; Constipation; Defecation
PubMed: 36735431
DOI: 10.1097/SPV.0000000000001281 -
Head & Neck Mar 2024Malignant carotid body tumors (MCBT) are rare and diagnosed after detection of nodal or distant metastases. This systematic review (SR) focuses on MCBT initially... (Meta-Analysis)
Meta-Analysis
Malignant carotid body tumors (MCBT) are rare and diagnosed after detection of nodal or distant metastases. This systematic review (SR) focuses on MCBT initially approached by surgery. Preferred Reporting Items for SR and Meta-Analysis (MA) guided the articles search from 2000 to 2023 on PubMed, Scopus, and Web of Science. Among 3548 papers, 132 (337 patients) were considered for SR; of these, 20 (158 patients) for MA. Malignancy rate was 7.3%, succinate dehydrogenase (SDH) mutation 17%, age at diagnosis between 4th and 6th decades, with a higher prevalence of females. MCBTs were mostly Shamblin III, with nodal and distant metastasis in 79.7% and 44.7%, respectively. Malignancy should be suspected if CBT >4 cm, Shamblin III, painful or otherwise symptomatic, at the extremes of age, bilateral, with multifocal disease, and SDHx mutations. Levels II-III clearance should be performed to exclude nodal metastases and adjuvant treatments considered on a case-by-case basis.
Topics: Female; Humans; Male; Carotid Body Tumor; Head and Neck Neoplasms; Mutation
PubMed: 38179805
DOI: 10.1002/hed.27624 -
Asian Pacific Journal of Cancer... Jun 2021In this study, we aimed to detect Succinate Dehydrogenase Complex Iron Sulfur Subunit B (SDHB) frequency in paragangliomas and pheochromocytomas (PPGL) with...
Succinate Dehydrogenase Complex Iron Sulfur Subunit B (SDHB) Immunohistochemistry in Pheochromocytoma, Head and Neck Paraganglioma, Thoraco-Abdomino-Pelvic Paragangliomas: Is It a Good Idea to Use in Routine Work?
BACKGROUND
In this study, we aimed to detect Succinate Dehydrogenase Complex Iron Sulfur Subunit B (SDHB) frequency in paragangliomas and pheochromocytomas (PPGL) with immunohistochemistry; compare with Pheochromacytoma of the Adrenal Gland Scaled Score (PASS) classification and analyse the differences between pheochromocytoma (Pheo), head-neck paragangliomas (HNPGL) and thoraco-abdominal-pelvic paraganglioma (TAPPGL) sub-groups.
METHODS
A total 114 PPGL cases (73 HNPGL, 15 TAPPGL and 27 Pheo belonging to 112 cases) are included. Immunohistochemically, SDHB and Ki-67 are investigated and malignancy risks are determined by PASS classification. Results are assessed statistically with chi-square test and p <0,01 is considered significant.
RESULTS
SDHB mutations are observed in 20 of 114 (17.54 %) PPGL cases, 3 (11,12%) of which is Pheo, 12 (16,44) is HNPGL, and 5 (35,71%) is TAPPGL (P <0,02). While 15/82 (18,29%) cases with SDHB mutations do not have a malignancy potential according to PASS classification, 5/32 (15,63%) cases has (p=0,73). TAPPGL, HNPGL and Pheo sub-groups have a significant difference between SDHB expression (p <0,02), malignancy potential according to PASS classification (p <0,0001) and Ki-67 proliferation index (p <0,0001).
CONCLUSION
To identify patients for molecular pathological examination, routine application of SDHB immunohistochemistry to PPGL tumors are suggested especially in HNPGLs.
Topics: Head and Neck Neoplasms; Humans; Immunohistochemistry; Paraganglioma; Pheochromocytoma; Succinate Dehydrogenase; Thoracic Neoplasms
PubMed: 34181326
DOI: 10.31557/APJCP.2021.22.6.1721 -
Current Medical Research and Opinion Apr 2020Oral supplementation with iron is a standard intervention for treating or preventing iron deficiency with or without anemia. Over the last few decades, various forms of...
Oral supplementation with iron is a standard intervention for treating or preventing iron deficiency with or without anemia. Over the last few decades, various forms of oral iron have been developed to improve treatment tolerability and iron bioavailability. In this review, we gathered research data regarding the use of iron protein succinylate since it was first marketed in the 1980s. Electronic databases - PubMed and the Cochrane Library - were searched for studies published up to March 2019. Clinical or observational studies reporting data on the tolerability of oral iron protein succinylate were included. Results were statistically described to evaluate and compare the efficacy and safety of iron protein succinylate with the comparators under study. Iron protein succinylate was investigated in 54 studies: 38 randomized clinical trials and 16 observational studies, with a total of 8454 subjects. Of them, 8142 were included in the efficacy analysis: patients were divided into three population subtypes: general ( = 1899), gynecological/obstetric ( = 5283), and pediatric ( = 960). In total, 6450 patients received iron protein succinylate, experiencing a significant change in hemoglobin and ferritin in all populations. The change in all parameters was similar or higher with iron protein succinylate compared to other iron treatments evaluated. Overall, study groups receiving iron protein succinylate reported the lowest rate of adverse events. Although all iron treatments analyzed are effective and safe, our results suggest that iron protein succinylate may be an excellent choice to treat iron deficiency and anemia due to its superior effectiveness and tolerability.
Topics: Administration, Oral; Anemia, Iron-Deficiency; Child; Female; Humans; Iron Deficiencies; Metalloproteins; Pregnancy; Succinates
PubMed: 31944128
DOI: 10.1080/03007995.2020.1716702 -
Zhurnal Nevrologii I Psikhiatrii Imeni... 2023To evaluate systematically the published peer-reviewed literature and estimate the effect of therapy with Mexidol on the course and outcomes of ischemic stroke (II) in... (Meta-Analysis)
Meta-Analysis
OBJECTIVE
To evaluate systematically the published peer-reviewed literature and estimate the effect of therapy with Mexidol on the course and outcomes of ischemic stroke (II) in adult patients.
MATERIAL AND METHODS
The meta-analysis included 11 studies reported In Russian (2 randomized controlled studies, 9 non-randomized, unblinded cohort studies).
RESULTS
The results obtained indicate a positive effect of Mexidol on the course of II in the treated adult patients: we found statistically significant decrease in NIHSS scores on days 7-10 and 21-24 and in modified Rankin scale scores on days 5-7 and days 10-14 compared with the control group. The cumulative effect of the drug was shown: the between-group difference of the NIHSS scores increases with the course of observation time. The effect of Mexidol on indicators on the NIHSS scale is more significant, the greater the initial severity of the patient's neurological deficit.
CONCLUSION
Heterogeneity in study designs and patient characteristics has resulted in significant statistical heterogeneity, and the evidence presented at the time of writing requires further examination as new data become available.
Topics: Adult; Humans; Stroke; Brain Ischemia; Ischemic Stroke; Picolines
PubMed: 38148698
DOI: 10.17116/jnevro202312312249 -
BMC Anesthesiology Mar 2020The evidence base for the widely accepted standard regimen of succinylcholine for rapid sequence induction (1.0 mg kg) remains unclear. (Meta-Analysis)
Meta-Analysis
BACKGROUND
The evidence base for the widely accepted standard regimen of succinylcholine for rapid sequence induction (1.0 mg kg) remains unclear.
METHODS
We performed a systematic review and meta-analysis of randomized trials comparing any succinylcholine regimen with the standard regimen (1.0 mg kg) and reporting on intubating conditions and/or apnoea times. Results were expressed as absolute risk differences (ARD) for dichotomous data and mean differences (MD) for continuous data.
RESULTS
We retrieved six trials with relevant data of 864 patients (ASA 1 or 2, aged 18-65 years, body mass index < 30 kg m). Four regimens (0.3, 0.4, 0.5, 0.6 mg kg) were compared with 1.0 mg kg in at least three trials each, and three (0.8, 1.5, 2 mg kg) in one each. With 0.3 to 0.5 mg kg, the likelihood of excellent intubating conditions was significantly decreased (ARD - 22% to - 67%). With 0.3 and 0.4 mg kg, but not with 0.5, 0.6, 0.8, 1.5 and 2.0 mg kg, the likelihood of unacceptable intubating conditions was significantly increased (ARD + 22% and + 32%, respectively). With 2.0 mg kg, but not with 0.8 or 1.5 mg kg, the likelihood of excellent intubating conditions was significantly increased (ARD + 23%). Apnoea times were significantly shorter with regimens ≤0.8 mg kg (MD - 1.0 to - 3.4 min) but were not reported with 1.5 or 2.0 mg kg.
CONCLUSIONS
With succinylcholine regimens ≤0.5 mg kg, excellent intubating conditions are less likely and apnoea times are shorter, compared with 1 mg kg. With 0.3 and 0.4 mg kg, unacceptable intubating conditions are more common. Succinylcholine 1.5 mg kg does not produce more often excellent conditions compared with 1 mg kg, while 2.0 mg kg does, but the database with these regimens is weak and apnoea times remain unknown. Limited information size and strong statistical heterogeneity decrease the certainty of the evidence.
Topics: Dose-Response Relationship, Drug; Humans; Neuromuscular Depolarizing Agents; Randomized Controlled Trials as Topic; Rapid Sequence Induction and Intubation; Succinylcholine
PubMed: 32122305
DOI: 10.1186/s12871-020-00968-1 -
Oncology Reports Mar 2020Gastrointestinal stromal tumors (GISTs) are the most commonly observed mesenchymal tumors of the digestive tract, and they originate from the interstitial cells of...
Gastrointestinal stromal tumors (GISTs) are the most commonly observed mesenchymal tumors of the digestive tract, and they originate from the interstitial cells of Cajal. GISTs can be divided into KIT/PDGFRA‑mutant GISTs and wild‑type GISTs based on the presence or absence of KIT/PDGFRA mutations. Wild‑type GISTs can be divided into succinate dehydrogenase complex (SDH)‑deficient GISTs and non‑SDH‑deficient GISTs. Downstream signaling pathways activated by these mutations serve a pivotal role in the development of GISTs and are associated with the biological behavior, including risk stratification, clinical prognosis and drug resistance. Accurate medical care requires accurate molecular diagnosis, which in turn prolongs the survival of patients with GISTs and makes GIST a chronic disease. At present, there is a lack of effective treatment for imatinib/sunitinib/regorafenib resistant patients and KIT/PDGFRA‑WT GISTs, which is undoubtedly a major challenge for future research. The present review summarizes the molecular pathogenesis of GISTs and the progress of related research.
Topics: Drug Resistance, Neoplasm; Gastrointestinal Stromal Tumors; Genetic Heterogeneity; Humans; Imatinib Mesylate; Phenylurea Compounds; Prognosis; Proto-Oncogene Proteins c-kit; Pyridines; Receptor, Platelet-Derived Growth Factor alpha; Succinate Dehydrogenase; Sunitinib
PubMed: 32020209
DOI: 10.3892/or.2020.7470 -
Frontiers in Oncology 2021Paragangliomas (PGLs) are neuroendocrine neoplasms arising from chromaffin cells of sympathetic or parasympathetic paraganglia. Systemic therapies have been used only in...
BACKGROUND
Paragangliomas (PGLs) are neuroendocrine neoplasms arising from chromaffin cells of sympathetic or parasympathetic paraganglia. Systemic therapies have been used only in metastatic PGLs. Antiangiogenic agents, such as sunitinib, could be a viable therapeutic choice in the subgroup of patients with -positive PGLs. We describe the case of a man with Familial Paraganglioma Syndrome type 1 (FPGL) related to a novel mutation in gene treated with sunitinib. Furthermore, we performed a systematic review of the literature aimed to address the following question: is sunitinib treatment effective in patients with advanced/progressive/metastatic PGL?
METHODS
We performed a data search using MEDLINE, Cochrane Library, and Scopus between April 2019 and September 2020. We included studies reporting data on clinical or biological characteristics, or clinical outcomes of patients with PGLs treated with sunitinib.
RESULTS
The search leaded to the selection of 25 publications. Data from case reports and case series showed that disease control rate (DCR = stable disease + partial response + complete response) was achieved in 34.7% of cases under sunitinib treatment. In 39% of patients DCR was followed by progressive disease (PD) or tumor relapse, 26.1% patients showed PD. Data from clinical trials showed that DCR was 83%, and the median progression free survival was 13.4 months.
DISCUSSION
Data from the present literature review suggested that sunitinib could be a viable therapeutic option in advanced/progressive/metastatic inoperable PGLs. However, further trials on the efficacy of sunitinib in FPGL and sporadic PGL are needed.
PubMed: 34221997
DOI: 10.3389/fonc.2021.677983