BACKGROUND: Ovarian cancer is insidious and usually detected in advanced stages of the disease. As the ovaries are pelvic organs, changes in their pelvic fluid metabolites may be associated with ovarian cancer.
METHODS: Metabolomic changes in the pelvic fluid were detected using liquid chromatography-tandem mass spectrometry (LC-MS/MS) in patients with ovarian cancer, ovarian cysts and uterine fibroids. Area under the curve (AUC) analysis was used to assess the diagnostic performance of lipid metabolites and blood tumor indices. The Pearson correlation algorithm was used to analyze the correlation between clinical characteristics and lipid metabolites in ovarian cancer patients.
RESULTS: There were 24 lipid metabolites significantly changed in the pelvic fluid of ovarian cancer patients (p < 0.05). Palmitoylcarnitine, lipoamide, lipid metabolites, and blood tumor indices (CA15-3 and CA125) showed AUC > 0.8, with palmitoylcarnitine reaching a high of 0.942. In addition, we found that some lipid metabolites were significantly associated with the clinical stage, abdominal water volume, lymphatic metastasis, and recurrence (p < 0.05, r > 0.5).
CONCLUSIONS: Levels of specific lipid metabolites are potential biomarkers of ovarian cancer and may play a key role in the early diagnosis and prognostic assessment of ovarian cancer.
CONCLUSIONS: Our results showed that pelvic metabolites, especially some lipid metabolites, play an important role in the diagnosis of ovarian cancer. Meanwhile, partial lipid metabolites were closely associated with the clinical presentation and prognosis of patients with ovarian cancer. We believe that our study makes a significant contribution to the literature because it provides a potential approach that is more effective for ovarian cancer detection.

Ostarine, also known as MK-2866 or enobosarm, is a selective androgen receptor modulator (SARM). It has anabolic properties and as such is widely used in doping, accounting in 2021 for 25 % of the adverse analytical findings (AAF) among the class S1.2 \"Other anabolic agents\" of products banned by the World Anti-Doping Agency, to which it belongs. But in some cases, it can be responsible for an AAF following contamination. We report the case of an athlete who contaminated herself by exchanging body fluids while kissing her boyfriend, who took 25 mg per day of MK-2866 for 9 days prior to the athlete\'s AAF (urinary concentration evaluated at 13 ng/mL) without her knowledge. Both subjects came to our lab for hair testing. The athlete\'s hair was black and slightly frizzy. Six segments of 2 cm then 7 × 3 cm (33 cm) were analysed and showed increasing concentrations, from 2 pg/mg on the first segment to 17.8 pg/mg on the last segment. The boyfriend\'s hair, light-brown, analyzed on 4 × 2 cm, also showed increasing values, from 65 to 143 pg/mg. These gradients of concentration in the hair\'s athlete and in her boyfriend were compatible with external contamination of the hair, confirmed by analysis of washing baths, pillowcases (150 pg on each), and the athlete\'s hairbrush (250 pg). Fingernails were also contaminated, with 21 pg/mg in the athlete and 1041 pg/mg in the boyfriend, with highly contaminated washing baths, and toenails were less contaminated, with 2 pg/mg in the athlete and 17.3 pg/mg in the boyfriend. Urine samples taken 35 days after the start of MK-2866 treatment showed a value of 3690 ng/mL in the boyfriend and 5.7 ng/mL in the athlete. After 6 days off, these concentrations were 3.3 ng/mL and 0.1 ng/mL, respectively. A controlled transfer study was carried out 12 days after discontinuation (urine concentrations returned to negative level). After administration of 17 mg (the 25 mg/mL vial having been controlled at 17 mg/mL), urine samples were taken from the boyfriend and the athlete (n = 10 for each) for more than 25 h after they had been living normally with each other (regular kissing in particular). The boyfriend\'s urine concentrations ranged from 681 ng/mL to 12822 ng/mL (Tmax = 8:30 hrs), and the athlete\'s from 0.3 ng/mL to 13 ng/mL with Tmax = 8:30 hrs, i.e. at 22:30 hrs, which corresponded exactly to the time of collection of the urine that showed AAF, with a similar concentration. The dose ingested by the athlete was estimated at 15 µg. These results demonstrate the transfer of ostarine via body fluids between two subjects, with a high risk of AAF in one athlete, as observed in our case.

BACKGROUND: Green inclusions (GI) are distinct morphological features found in phagocytic cells like neutrophils and monocytes. These intracellular structures exhibit bright green color with unclear boundaries, and their origin and clinical significance are still not fully understood. GI carriers, often middle-aged to elderly with liver dysfunction, face higher mortality rates, earning them the nickname \"inclusions of death.\" This report presents a rare GI-related pediatric case, demonstrating a favorable response to blood purification therapy.
METHODS: A 10-year-old girl was admitted with recurrent fever, abdominal pain, and neurological symptoms, culminating in a transient cardiac arrest. Blood tests revealed multi-organ injury and a high risk of disseminated intravascular coagulation, while peripheral blood smear detected GI within neutrophil cytoplasm.
METHODS: The patient was diagnosed with acute necrotizing encephalopathy, severe sepsis, and multiple organ failure.
RESULTS: After receiving multiple sessions of blood purification therapy, peripheral blood GI levels markedly decreased, accompanied by improvements in various laboratory parameters and signs of neurological recovery. Unfortunately, due to financial constraints, the family opted to transfer the patient back to their local hospital, where she succumbed shortly after discharge.
CONCLUSIONS: This case underscores the complexities in managing GI-related pediatric cases. Moreover, it emphasizes the potential benefits of blood purification therapy in such scenarios. Notably, this study highlights a potential correlation between the level of GI in peripheral blood and disease severity, particularly in pediatric cases. While these findings hold clinical significance for the treatment and management of GI-related patients, further research focusing on middle-aged and elderly individuals is imperative to elucidate the fundamental relationship between peripheral blood GI quantity and clinical presentation and to evaluate the efficacy of blood purification in GI-related cases.

Sediment cores are optimal mediums for investigating the historical presence of offshore microplastics (MPs). In this study, two sediment cores were collected at varying water depths, i.e., XS2 (10 m) and XS3 (20 m), from the Xiangshan offshore (XSO) in Ningbo. We focused on the spatiotemporal distribution characteristics of MPs within two sediment cores and explored the response differences of MPs abundance to natural factors and human activities. The results showed that the MPs abundance in sediments has gradually increased since the late 1960s, but with interannual fluctuations. MPs abundance in XS2 and XS3 were 1133-8700 and 633-11433 items/kg dry weight, respectively. The predominant polymers were PA, PU, PET and ACR, with fragmented particles being the most prevalent shape of MPs. The MPs abundance in XS2 and XS3 had a similar response to natural factors, mainly including (i) MPs abundance significantly correlated with the sediment load of the Qiantang River (p < 0.01), indicating that sediment load might be an important factor affecting the MPs abundance and that MPs transported by rivers had characteristics of near-source sedimentation; (ii) typhoons had the effect of weakening the MPs abundance; and (iii) geological activities might be potential contributing factors to variations in MPs\' abundance in deep sediments. Correlation analyses demonstrated that MPs in XSO was the result of multiple sources, stemming from plastic production, sewage discharge, marine fisheries and shipping activities. Notably, XS3 exhibited higher sensitivity to human activities compared to XS2, owing to differences in sampling locations. This study underscores the significance of employing two sediment cores, rather than a single core, as it provides a more comprehensive insight into the overarching trends and disparities in the historical pollution of MPs. Our findings contribute to a deeper understanding of the history of offshore MPs pollution, shedding new light on this critical environmental issue.

Fenthion (MPP) is a popular organophosphorus pesticide that acts via inhibition of the enzyme cholinesterase. It is well known that fenthion is metabolized by plants, animals and soil microorganisms to sulfone and sulfoxide by oxidation of thioether and is further metabolized by conversion of P = S to P = O (oxon). Although human fenthion poisonings sometimes occur, details of the distribution of fenthion and its metabolites within the bodies of victims are unclear. In this study, we developed and validated an approach that uses liquid chromatography coupled with electrospray ionization-tandem mass spectrometry to quantify the concentrations of fenthion and its five metabolites (MPP-sulfoxide, MPP-sulfone, MPP-oxon, MPP-oxon sulfoxide and MPP-oxon sulfone) in the fluids [blood, cerebral spinal fluid (CSF) and urine] of a human cadaver. The calibration curves were linear in the concentration range 5-200 ng/mL. Our method allowed for repeatable and accurate quantification with intra- and inter-assay coefficients of variation smaller than 8.6% and 11.0%, respectively, for each target compound. We used the developed method to measure the fenthion concentration in the blood of a dead victim of fenthion poisoning and found the concentration to be in the comatose-fatal range. In addition, we detected for the first time fenthion and all five fenthion metabolites in the cadaveric blood and CSF. The concentrations of the oxidized forms of fenthion, including MPP-sulfone and MPP-sulfoxide, were higher in CSF than in the blood.

Female genital mutilation/cutting (FGM/C) is a major public health problem, particularly in developing countries.
The authors reported a case of 48-year old multiparous woman presented to Kassala Hospital, east Sudan, with recurrent urine retention resulting from urethral obstruction, which was caused by large vulval inclusion cyst. A traditional birth attendant circumcised her when she was 5 year old. Five years before her presentation the patient observed a painless swelling in her vulva, which was gradually increasing in size. She presented to the hospital with urine retention seeking medical care. Local examination showed a large cystic swelling originating in the circumcision line and covering the introitus. A diagnosis of inclusion cyst at the site of circumcision was made. The cyst was large enough causing bladder outlet obstruction and when the patient advised to tilt it away from the urethral orifice she passed urine without difficulties. The cyst was surgically removed by dissection along the lines of cleavage, which measured 10 × 9.2 cm and weighed 1.2 kg.
This case report indicates that FGM is a serious public health problem and there should an urgent intervention such as planned health education campaigns to end FGM practice.

BACKGROUND: Few reports of idiopathic hypereosinophilic syndrome exist presenting as ischemic cerebrovascular disease, and the majority are watershed infarction. We report the first case of idiopathic hypereosinophilic syndrome that has clinical features of capsular warning syndrome lasting 6 weeks.
METHODS: A 26-year-old man complained of recurrent right limb weakness, accompanying slurred speech, and right facial paresthesia.
METHODS: The patient was diagnosed with idiopathic hypereosinophilic syndrome (IHES).
METHODS: Adequate glucocorticoid and anticoagulant treatments were given.
RESULTS: The patient\'s motor ability improved, and he was discharged 2 weeks later. Muscle strength in the right-side extremities had fully recovered at a 3-month follow-up after discharge.
CONCLUSIONS: This case suggests that idiopathic hypereosinophilic syndrome should be considered as a cause of capsular warning syndrome, and the dose of glucocorticoid and the efficacy evaluation index needs to be reevaluated for the treatment of ischemic cerebrovascular disease associated with idiopathic hypereosinophilic syndrome.

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A fatal case of 1,4-butanediol (1,4-BD) oral ingestion is reported here, in which a 51-year-old man was found dead in his bed. According to the police report, the deceased was a known drug user. A glass bottle labeled (and later confirmed to be) \"Butandiol 1,4\" (1,4-BD) was found in the kitchen. Furthermore, the deceased\'s friend stated that he consumed 1,4-BD on a regular basis. The autopsy and histological examination of postmortem parenchymatous organ specimens did not revealed a clear cause of death. Chemical-toxicological investigations revealed gammahydroxybutyrat (GHB) in body fluids and tissues in the following quantities: femoral blood 390 mg/L, heart blood 420 mg/L, cerebrospinal fluid 420 mg/L, vitreous humor 640 mg/L, urine 1600 mg/L, and head hair 26.7 ng/mg. In addition, 1,4-BD was qualitatively detected in the head hair, urine, stomach contents, and the bottle. No other substances, including alcohol, were detected at pharmacologically relevant concentrations. 1,4-BD is known as precursor substance that is converted in vivo into GHB. In the synoptic assessment of toxicological findings, the police investigations and having excluded other causes of death, a lethal GHB-intoxication following ingestion of 1,4-BD, can be assumed in this case. Fatal intoxications with 1,4-BD have seldom been reported due to a very rapid conversion to GHB and, among other things, non-specific symptoms after ingestion. This case report aims to give an overview to the published of fatal 1,4-BD-intoxications and to discuss the problems associated with detection of 1,4-BD in (postmortem) specimens.