Intravenous vitamin C treatment might have a suppressive effect on the prevention of endometriotic implant induction and regression of endometriotic implant volumes.
The
β-diketone moiety is commonly present in many anticancer
drugs, antibiotics, and natural products. We describe a general method
for radiolabeling β-diketone-bearing molecules with fluoride-18.
Radiolabeling was carried out via 18F–19F isotopic exchange on nonradioactive difluoro-dioxaborinins, which
were generated by minimally modifying the β-diketone as a difluoroborate.
Radiochemistry was one-step, rapid (<10 min), and high-yielding
(>80%) and proceeded at room temperature to accommodate the half-life
of F-18 (t
1/2 = 110 min). High molar activities
(7.4 Ci/μmol) were achieved with relatively low starting activities
(16.4 mCi). It was found that substituents affected both the solvolytic
stability and fluorescence properties of difluoro-dioxaborinins. An
F-18 radiolabeled difluoro-dioxaborinin probe that was simultaneously
fluorescent showed sufficient stability for in vivo positron emission tomography (PET)/fluorescence imaging in mice,
rabbits, and patients. These findings will guide the design of probes
with specific PET/fluorescence properties; the development of new
PET/fluorescence dual-modality reporters; and accurate in
vivo tracking of β-diketone molecules.
Sepsis is a systemic inflammatory response syndrome that causes lifethreatening tissue and organ dysfunctions caused by endogenous mediators in response to infection. 1 The inflammatory response initiated by cytokines is clinically manifested by various biological responses such as hypotension, vasoconstrictor agents, vascular hyporeactivity and septic shock. More than 30 million cases of sepsis are reported annually around the world, despite progress in the clinical management of sepsis, sepsis morbidity and mortality rates still remain high. 2 Especially comorbid liver dysfunction during sepsis is closely related to high mortality in patients. 3,4 The liver immune response in sepsis is responsible for the removal of endotoxins, it can also cause immune system suppression and organ damage because of uncontrolled inflammation. 4
This study aimed to evaluate the effects of propofol and dexmedetomidine over different timescales on the IVF outcomes for transvaginal oocyte retrieval (TVOR). Twenty-four rats included in the study were divided into two main groups and three subgroups were subjected to the ovulation induction process. Group 1 was administered propofol (100 mg/kg i.v.) and group 2 were administered dexmedetomidine (25 µg/kg i.p.) The oviduct collection procedure was completed within 15 min for subgroup Pro15min, Dex15min (n = 4), within 16 to 30 min for subgroup Pro30min, Dex30min (n = 4) and within 31 to 60 min for subgroup Pro60min, Dex60min (n = 4) after euthanasia. The total number of oocytes was counted. After in vitro fertilization, the number and quality of embryos were evaluated. The number of pups born were evaluated after embryo transfer. The embryo number, quality and pup count decreased as the administration time for propofol increased (p < 0.05). No statistically significant difference was found between the dexmedetomidine subgroups for embryo number, quality and pup count(p > 0.05). As the exposure time to propofol increased, the number and quality of embryos obtained, and the pup count, decreased. The use of dexmedetomidine had no negative impacts on the number of embryos, their quality or the number of pups.
Objective
Ovarian torsion is a common cause of local ischemic damage, reduced follicular activity and infertility. This study aimed to investigate how well platelet‐rich plasma (PRP) protects against experimental ischemic (I) and ischemia‐reperfusion (I/R) injury in rat ovaries and its effect on in vitro fertilization (IVF) outcomes.
Method
Fifty‐six adult female Sprague–Dawley albino rats were randomly assigned to six groups of eight animals each: Sham, Ischemia, I/R, Sham + PRP, I + PRP, and I/R + PRP. The remaining eight animals were used to prepare the PRP. The ischemia groups were subjected to bilateral adnexal torsion for 3 h, while the I/R and I/R + PRP groups received subsequent detorsion for 3 h. Intraperitoneal (i.p.) PRP was administered 30 min prior to ischemia (I + PRP) or reperfusion (I/R + PRP). The ovaries were stimulated through an intraperitoneal injection of 150–300 internal units of IU/kg PMSG. After ovulation induction, oocytes were taken from the ovaries, and IVF was performed.
Results
The number of MII oocytes reached the highest number with 4.63 ± 0.74 in the S group and had the lowest number with 0.50 ± 0.53 in the I/R group. There were statistically significant differences for the number of embryos obtained on the second day between the I and I + PRP groups and the I/R and I/R + PRP groups (p = 0.000). In comparing anti‐Müllerian hormone 1 (AMH1) and AMH2 values within the group, the highest decrease was observed in the I and I/R groups.
Conclusion
PRP is effective in minimizing ovarian damage and preserving ovarian reserves following ovarian torsion.
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