Introduction: Premenstrual syndrome refers to the presence of cyclic behavioral and physical symptoms that affects some women. Finding an effective and safe way to treat premenstrual syndrome has always been a serious concern. More than 95% of the young and middle-aged women are affected, and in 2-10% are severe enough to affect their lifestyle and occupation. The aim of this study was to determine the effect of Nigella sativa seeds on the severity of symptoms of premenstrual syndrome.Materials and Methods: This double blind randomized clinical trial study, performed on 84 students with symptoms of premenstrual syndrome residing in girls' dormitories in Mashhad (Iran) University of Medical Sciences in 2017. They were randomly divided into two groups of case and control. Data collection tool was COPE form. Correspondingly, the severity of the symptoms was compared one and two months after the intervention by before intervention and the control group. The intervention group recived oral capsule containing 500 mg of Nigella sativa seeds and the control group received placebo capsule, three times a day from 7 days before the onset of menstrual bleeding to the first 3 days of menstrual bleeding for 2 cycles.Results: The overall severity of premenstrual syndrome symptoms had a significant reduction in the intervention group than the control group at the end of the first and second months after using Nigella sativa seeds Capsule(P<0.001). Conclusion:The results of this study indicated that the Nigella sativa seeds reduces the severity of symptoms of premenstrual syndrome, so it can be used to treat this common problem.

Introduction: Collagen VI-related disorders are a group of heterogeneous muscular diseases due to mutations within the COL6A1, COL6A2, and COL6A3 genes, encoding collagen VI as an essential component of the extracellular matrix. Here, we reported four patients affected by collagen VI-related disorders with genetic variants in COL6A genes. Case Presentation: After a comprehensive clinical examination, four unrelated patients with muscular dystrophy were referred for genetic counseling. Whole-exome sequencing followed by Insilco analysis was done for one affected individual from each family. The analysis of genomic data revealed four different mutations within the COL6A1, COL6A2, and COL6A3 genes in the affected individuals. Conclusions: According to the previous reports, limb-girdle muscular dystrophy is inherited as autosomal dominant, and congenital myosclerosis phenotype is inherited in an autosomal recessive manner. Carrier testing and prenatal testing are possible if pathogenic variants are recognized in an affected family member.