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"Lazarus Response" When Feto-Maternal Microchimerism Kicks in: Spontaneous Remission in Refractory Primary Mediastinal B Cell Lymphoma Following Twin Pregnancy.
Diagnostics (Basel)
September 2024
Department of Obstetrics and Gynecology, Iuliu Hațieganu University of Medicine and Pharmacy, 400337 Cluj-Napoca, Romania.
: Spontaneous remission of cancer is a rare and poorly understood phenomenon characterized by complete or partial remission of a malignancy in the absence of or with inadequate treatment. The underlying mechanism for such occurrences is poorly understood, however, immune mechanisms seem to play an important role in such cases. In recent years increasingly more data have become available in favor of the clinical benefit of low levels of chimerism in hematologic malignancies.
View Article and Find Full Text PDFWhole-genome sequences reveal zygotic composition in chimeric twins.
HGG Adv
July 2024
Research Center for Natural Sciences, Korea Advanced Institute of Science and Technology, Daejeon, Korea; Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Korea. Electronic address:
While most dizygotic twins have a dichorionic placenta, rare cases of dizygotic twins with a monochorionic placenta have been reported. The monochorionic placenta in dizygotic twins allows in utero exchange of embryonic cells, resulting in chimerism in the twins. In practice, this chimerism is incidentally identified in mixed ABO blood types or in the presence of cells with a discordant sex chromosome.
View Article and Find Full Text PDFBlood chimerism associated with IVF in monochorionic twins with concordant sex: case report.
Hematol Transfus Cell Ther
November 2024
Department of Transfusion Medicine, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China. Electronic address:
A case report of a normal fertile woman with 46,XX/46,XY somatic chimerism reveals a critical role for germ cells in sex determination.
Hum Reprod
April 2024
Clinical Research Center for Reproduction and Genetics in Hunan Province, Reproductive and Genetic Hospital of CITIC-XIANGYA, Changsha, China.
Individuals with 46,XX/XY chimerism can display a wide range of characteristics, varying from hermaphroditism to complete male or female, and can display sex chromosome chimerism in multiple tissues, including the gonads. The gonadal tissues of females contain both granulosa and germ cells. However, the specific sex chromosome composition of the granulosa and germ cells in 46,XX/XY chimeric female is currently unknown.
View Article and Find Full Text PDFIncreased heterozygosity in low-pass sequencing data allows identification of blood chimeras in cattle.
Anim Genet
October 2023
Agroscope, Posieux, Switzerland.
In about 90% of multiple pregnancies in cattle, shared blood circulation between fetuses leads to genetic chimerism in peripheral blood and can reduce reproductive performance in heterosexual co-twins. However, the early detection of heterosexual chimeras requires specialized tests. Here, we used low-pass sequencing data with a median coverage of 0.
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